<?php
namespace Common\Tools;
/**
* 汉字转拼音控制器
 * @author zhouwenxiao
 */
class ChineseToPinyin {
	//utf-8中国汉字集合
	private $ChineseCharacters;
	//编码
	private $charset = 'utf-8';
	public function __construct(){
		if( empty($this->ChineseCharacters) ){
			$this->ChineseCharacters = file_get_contents('Public/pinyinlib/ChineseCharacters.dat');
		}
	}

	public function index(){
		$this->display();
	}

	/*
	* 转成带有声调的汉语拼音
	* param $input_char String  需要转换的汉字
	* param $delimiter  String   转换之后拼音之间分隔符
	* param $outside_ignore  Boolean     是否忽略非汉字内容
	*/
	public function TransformWithTone($input_char,$delimiter=' ',$outside_ignore=false){
		$input_len = mb_strlen($input_char,$this->charset);
		$output_char = '';
		for($i=0;$i<$input_len;$i++){
			$word = mb_substr($input_char,$i,1,$this->charset);
			if(preg_match('/^[\x{4e00}-\x{9fa5}]$/u',$word) && preg_match('/\,'.preg_quote($word).'(.*?)\,/',$this->ChineseCharacters,$matches) ){
				$output_char.=$matches[1].$delimiter;
			}else if(!$outside_ignore){
				$output_char.=$word;
			}
		}
		return $output_char;
	}
	
	/*
	* 转成带无声调的汉语拼音
	* param $input_char String  需要转换的汉字
	* param $delimiter  String   转换之后拼音之间分隔符
	* param $outside_ignore  Boolean     是否忽略非汉字内容
	*/	
	public function TransformWithoutTone($input_char,$delimiter='',$outside_ignore=true){
		$char_with_tone = $this->TransformWithTone($input_char,$delimiter,$outside_ignore);
		$char_without_tone  =  str_replace(
									array('ā','á','ǎ','à','ō','ó','ǒ','ò','ē','é','ě','è','ī','í','ǐ','ì','ū','ú','ǔ','ù','ǖ','ǘ','ǚ','ǜ','ü'),
									array('a','a','a','a','o','o','o','o','e','e','e','e','i','i','i','i','u','u','u','u','v','v','v','v','v'),
									$char_with_tone
								);
		return $char_without_tone;
	}
	
	/*
	* 转成汉语拼音首字母
	* param $input_char String  需要转换的汉字
	* param $delimiter  String   转换之后拼音之间分隔符
	*/	
	public function TransformUcwords($input_char,$delimiter=''){
		$char_without_tone = ucwords($this->TransformWithoutTone($input_char,' ',true));
		$ucwords = preg_replace('/[^A-Z]/','',$char_without_tone);
		if(!empty($delimiter)){
			$ucwords = implode($delimiter,str_split($ucwords));
		}
		return $ucwords;
	}

	/**
	 * 返回全拼音与首个拼音字符的字符串组合,以'-'进行连接
	 * @param $input_char
	 * @return string
	 */
	public function getAllPinyi($input_char){
		$pinyin = $this->TransformWithoutTone($input_char);
		$firstLetter = strtolower($this->TransformUcwords($input_char));
		return $pinyin.'-'.$firstLetter;
	}
}